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HELP Upgrade hypervisors from CentOS 6.8 to CentOS 7
by VONDRA Alain 06 Sep '16

06 Sep '16

Hi, I'd like to upgrade my oVirt environment from 3.5 to 3.6 and maybe 4, actually the manager oVirt is un 3.5 version, installed on a CentOS 7.2 and the two hypervisors are installed on CentOS 6.8. I need anyway to upgrade the hosts to be able to move to 3.6. I've tried to upgrade the first host, but I had of course issues telling that it can't be possible to mix different OS in the same cluster, I've also tried to create another cluster to put this host without success. What is the best way to upgrade cleanly and safely ? Thank you in advance for your advices Alain VONDRA Chargé d'exploitation des Systèmes d'Information Direction Administrative et Financière +33 1 44 39 77 76 UNICEF France 3 rue Duguay Trouin 75006 PARIS www.unicef.fr

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How can i installed ovirt engine with older version like 4.0.2.2 ?
by 转圈圈 06 Sep '16

06 Sep '16

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/var/run/ovirt-hosted-engine-ha/vm.conf not found
by Pat Riehecky 06 Sep '16

06 Sep '16

I seem to be unable to restart my ovirt hosted engine..... I'd swear I had this issue once before, but couldn't find any notes on my end. # cat /etc/ovirt-hosted-engine/hosted-engine.conf fqdn=vmadmin.fnal.gov vm_disk_id=36a09f1d-0923-4b3b-87aa-4788ca64064e vm_disk_vol_id=c4244bdd-80c5-4f68-83c2-9494d9d05723 vmid=823d3e5b-60c2-4e53-a9e8-313aedcaf808 storage=None conf=/var/run/ovirt-hosted-engine-ha/vm.conf host_id=4 console=qxl domainType=fc spUUID=00000000-0000-0000-0000-000000000000 sdUUID=81f19871-4d91-4698-a97d-36452bfae281 connectionUUID=73b61b0a-85f8-4fb7-8faf-c687ef7cc5d8 ca_cert=/etc/pki/vdsm/libvirt-spice/ca-cert.pem ca_subject="C=EN, L=Test, O=Test, CN=Test" vdsm_use_ssl=true gateway=131.225.193.200 bridge=ovirtmgmt metadata_volume_UUID=93cf12c5-d5e6-4ea6-bee7-de64ee52d7a5 metadata_image_UUID=22a9849b-c551-4783-ad0c-530464df47f3 lockspace_volume_UUID=0593a3b8-1d75-4be3-b65b-ce9a164d0309 lockspace_image_UUID=2c8c56f2-1711-4867-8ed0-3c502bb635ff conf_volume_UUID=07c72aa5-7fd0-4159-b83e-4d078ae9c351 conf_image_UUID=f9e59ec5-6903-4b2d-8164-4fce3d901bdd # The following are used only for iSCSI storage iqn= portal= user= password= port= -- Pat Riehecky Fermi National Accelerator Laboratory www.fnal.gov www.scientificlinux.org

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oVirt fails to install on nodes after moving engine to C7 host
by James 06 Sep '16

06 Sep '16

Hey, I moved our standalone engine from a C6 host to a C7 host and now it wont install/setup oVirt nodes. It just responds with messages like this: Host xxx.xxx.xxx installation failed. Unexpected connection termination. Failed to install Host xxx.xxx.xxx. Command returned failure code 1 during SSH session 'root(a)xxx.xx.xx.x'. And from engine.log 2016-09-06 12:20:08,011 ERROR [org.ovirt.engine.core.uutils.ssh.SSHDialog] (org.ovirt.thread.pool-8-thread-41) [55397a53] SSH error running command root(a)xxx.xx.xx.x:'umask 0077; MYTMP="$(TMPDIR="${OVIRT_TMPDIR}" mktemp -d -t ovirt-XXXXXXXXXX)"; trap "chmod -R u+rwX \"${MY 2016-09-06 12:20:08,011 ERROR [org.ovirt.engine.core.uutils.ssh.SSHDialog] (org.ovirt.thread.pool-8-thread-41) [55397a53] SSH error running command root(a)xxx.xx.xx.x:'umask 0077; MYTMP="$(TMPDIR="${OVIRT_TMPDIR}" mktemp -d -t ovirt-XXXXXXXXXX)"; trap "chmod -R u+rwX \"${MY TMP}\" > /dev/null 2>&1; rm -fr \"${MYTMP}\" > /dev/null 2>&1" 0; tar --warning=no-timestamp -C "${MYTMP}" -x && "${MYTMP}"/ovirt-host-deploy DIALOG/dialect=str:machine DIALOG/customization=bool:True': Command returned failure code 1 during SSH session 'root(a)xxx.xx.xx.x' 2016-09-06 12:20:08,007 ERROR [org.ovirt.engine.core.bll.hostdeploy.VdsDeployBase] (VdsDeploy) [55397a53] Error during deploy dialog: java.io.IOException: Unexpected connection termination at org.ovirt.otopi.dialog.MachineDialogParser.nextEvent(MachineDialogParser.java:387) [otopi.jar:] at org.ovirt.otopi.dialog.MachineDialogParser.nextEvent(MachineDialogParser.java:404) [otopi.jar:] at org.ovirt.engine.core.bll.hostdeploy.VdsDeployBase._threadMain(VdsDeployBase.java:304) [bll.jar:] at org.ovirt.engine.core.bll.hostdeploy.VdsDeployBase.access$800(VdsDeployBase.java:45) [bll.jar:] at org.ovirt.engine.core.bll.hostdeploy.VdsDeployBase$12.run(VdsDeployBase.java:386) [bll.jar:] at java.lang.Thread.run(Thread.java:745) [rt.jar:1.8.0_101] 2016-09-06 12:20:08,013 ERROR [org.ovirt.engine.core.uutils.ssh.SSHDialog] (org.ovirt.thread.pool-8-thread-41) [55397a53] Exception: java.io.IOException: Command returned failure code 1 during SSH session 'root(a)xxx.xx.xx.x' at org.ovirt.engine.core.uutils.ssh.SSHClient.executeCommand(SSHClient.java:527) [uutils.jar:] at org.ovirt.engine.core.uutils.ssh.SSHDialog.executeCommand(SSHDialog.java:312) [uutils.jar:] at org.ovirt.engine.core.bll.hostdeploy.VdsDeployBase.execute(VdsDeployBase.java:567) [bll.jar:] at org.ovirt.engine.core.bll.hostdeploy.InstallVdsInternalCommand.installHost(InstallVdsInternalCommand.java:189) [bll.jar:] at org.ovirt.engine.core.bll.hostdeploy.InstallVdsInternalCommand.executeCommand(InstallVdsInternalCommand.java:93) [bll.jar:] at org.ovirt.engine.core.bll.CommandBase.executeWithoutTransaction(CommandBase.java:1215) [bll.jar:] at org.ovirt.engine.core.bll.CommandBase.executeActionInTransactionScope(CommandBase.java:1359) [bll.jar:] at org.ovirt.engine.core.bll.CommandBase.runInTransaction(CommandBase.java:1982) [bll.jar:] at org.ovirt.engine.core.utils.transaction.TransactionSupport.executeInSuppressed(TransactionSupport.java:174) [utils.jar:] at org.ovirt.engine.core.utils.transaction.TransactionSupport.executeInScope(TransactionSupport.java:116) [utils.jar:] at org.ovirt.engine.core.bll.CommandBase.execute(CommandBase.java:1396) [bll.jar:] at org.ovirt.engine.core.bll.CommandBase.executeAction(CommandBase.java:378) [bll.jar:] at org.ovirt.engine.core.bll.MultipleActionsRunner.executeValidatedCommand(MultipleActionsRunner.java:207) [bll.jar:] at org.ovirt.engine.core.bll.MultipleActionsRunner.runCommands(MultipleActionsRunner.java:172) [bll.jar:] at org.ovirt.engine.core.bll.MultipleActionsRunner$2.run(MultipleActionsRunner.java:181) [bll.jar:] at org.ovirt.engine.core.utils.threadpool.ThreadPoolUtil$InternalWrapperRunnable.run(ThreadPoolUtil.java:89) [utils.jar:] at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [rt.jar:1.8.0_101] at java.util.concurrent.FutureTask.run(FutureTask.java:266) [rt.jar:1.8.0_101] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [rt.jar:1.8.0_101] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [rt.jar:1.8.0_101] at java.lang.Thread.run(Thread.java:745) [rt.jar:1.8.0_101] 2016-09-06 12:20:08,014 ERROR [org.ovirt.engine.core.bll.hostdeploy.VdsDeployBase] (org.ovirt.thread.pool-8-thread-41) [55397a53] Error during host xxx.xx.xx.x install: java.io.IOException: Command returned failure code 1 during SSH session 'root(a)xxx.xx.xx.x' at org.ovirt.engine.core.uutils.ssh.SSHClient.executeCommand(SSHClient.java:527) [uutils.jar:] at org.ovirt.engine.core.uutils.ssh.SSHDialog.executeCommand(SSHDialog.java:312) [uutils.jar:] at org.ovirt.engine.core.bll.hostdeploy.VdsDeployBase.execute(VdsDeployBase.java:567) [bll.jar:] at org.ovirt.engine.core.bll.hostdeploy.InstallVdsInternalCommand.installHost(InstallVdsInternalCommand.java:189) [bll.jar:] at org.ovirt.engine.core.bll.hostdeploy.InstallVdsInternalCommand.executeCommand(InstallVdsInternalCommand.java:93) [bll.jar:] at org.ovirt.engine.core.bll.CommandBase.executeWithoutTransaction(CommandBase.java:1215) [bll.jar:] at org.ovirt.engine.core.bll.CommandBase.executeActionInTransactionScope(CommandBase.java:1359) [bll.jar:] at org.ovirt.engine.core.bll.CommandBase.runInTransaction(CommandBase.java:1982) [bll.jar:] at org.ovirt.engine.core.utils.transaction.TransactionSupport.executeInSuppressed(TransactionSupport.java:174) [utils.jar:] at org.ovirt.engine.core.utils.transaction.TransactionSupport.executeInScope(TransactionSupport.java:116) [utils.jar:] at org.ovirt.engine.core.bll.CommandBase.execute(CommandBase.java:1396) [bll.jar:] at org.ovirt.engine.core.bll.CommandBase.executeAction(CommandBase.java:378) [bll.jar:] at org.ovirt.engine.core.bll.MultipleActionsRunner.executeValidatedCommand(MultipleActionsRunner.java:207) [bll.jar:] at org.ovirt.engine.core.bll.MultipleActionsRunner.runCommands(MultipleActionsRunner.java:172) [bll.jar:] at org.ovirt.engine.core.bll.MultipleActionsRunner$2.run(MultipleActionsRunner.java:181) [bll.jar:] at org.ovirt.engine.core.utils.threadpool.ThreadPoolUtil$InternalWrapperRunnable.run(ThreadPoolUtil.java:89) [utils.jar:] at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [rt.jar:1.8.0_101] at java.util.concurrent.FutureTask.run(FutureTask.java:266) [rt.jar:1.8.0_101] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [rt.jar:1.8.0_101] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [rt.jar:1.8.0_101] at java.lang.Thread.run(Thread.java:745) [rt.jar:1.8.0_101] I've confirmed connectivity from the engine to the hosts themselves and it can SSH fine, even running the above command manually works fine. To confirm, I migrated the oVirt engine by taking a backup, shutting down the old host, changing the hostname/IP of the new host to be the same as the old and restoring the backup. This is happening on oVirt 3.6 and is currently stopping us from being able to upgrade to oVirt 4.0 since we cannot convert one of our clusters to 3.6 compatibility mode (its currently on 3.5) without migrating the VM hosts. It happens on a fresh install or a reinstall, so not sure whats happening.

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ovirt3.5 certificate problem
by Fedele Stabile 06 Sep '16

06 Sep '16

I run ovirt3.5 the name of my hosted-engine is ov-engine2 but in certificate i have ov-engine1... I don't have any host with this name.. Can you help to change certificate? If I want HostedEngine HA and try to execute the related command hosted-engine --deploy it ends with an error 2016-09-05 13:27:45 DEBUG otopi.context context.dumpEnvironment:500 ENV BASE/exceptionInfo=list:'[(<class 'ovirtsdk.infrastructure.errors.ConnectionError'>, ConnectionError('[ERROR]::oVirt API connection failure, (51, "Unable to communicate securely with peer: requested domain name does not match the server\'s certificate.")',), <traceback object at 0x3b6d320>)]'

1 1

Edit default vdsm.conf
by mailinglists＠mooash.com 05 Sep '16

05 Sep '16

Hey, I'm wondering how I change what gets put into the default vdsm.conf on oVirt systems? I've looked at the docs here (https://github.com/oVirt/ovirt-host-deploy/blob/master/README.environment) and they suggest I should be able to put something like this: [environment:init] VDSM_CONFIG/vars/migration_max_bandwidth=str:0 VDSM_CONFIG/vars/max_outgoing_migrations=str:1 In /etc/ovirt-host-deploy.conf.d/50-custom.conf on the engine (does it need to go on the hosts instead?) How ever I can't get that to work. The var above never gets deployed to the system and if I add it and reinstall oVirt (Right Click on Host -> Reinstall) the config gets wiped. Is this the proper way? Should I be putting this config somewhere else to get it to find it? The system its running on is on oVirt 3.6.x but will be upgraded to 4 soon if that helps. Its also not a hosted Engine, a standalone one. Hosts are running C7 but Engine is still on C6 (about to be moved to C7). Cheers, James

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Networking issues on Hosted Engine Appliance
by Bryan Sockel 05 Sep '16

05 Sep '16

Having some issues with my Hosted Engine Appliance, I am able to get it up and running, and i can access it only from the server that is hosting it. The host server can ping the appliance, and the appliance can ping the host server. The host server can ping the rest of my network and get out to the internet. This is a nested setup i am using for testing and poc and is running on a vmware platform. Server IP Config: eno16777984: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 ether 00:50:56:01:0d:48 txqueuelen 1000 (Ethernet) RX packets 572078 bytes 673729777 (642.5 MiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 342235 bytes 191490802 (182.6 MiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 loop txqueuelen 0 (Local Loopback) RX packets 831524 bytes 6927010219 (6.4 GiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 831524 bytes 6927010219 (6.4 GiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 ovirtmgmt: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 10.20.42.3 netmask 255.255.252.0 broadcast 10.20.43.255 ether 00:50:56:01:0d:48 txqueuelen 0 (Ethernet) RX packets 957838 bytes 796793041 (759.8 MiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 795846 bytes 4627811240 (4.3 GiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 vnet0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 ether fe:16:3e:20:fc:a2 txqueuelen 500 (Ethernet) RX packets 3434 bytes 11065518 (10.5 MiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 9008 bytes 2493747 (2.3 MiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface default gw-lab.colo.test 0.0.0.0 UG 0 0 0 ovirtmgmt 10.20.40.0 0.0.0.0 255.255.252.0 U 0 0 0 ovirtmgmt link-local 0.0.0.0 255.255.0.0 U 1004 0 0 ovirtmgmt Appliance: eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 10.20.42.17 netmask 255.255.252.0 broadcast 10.20.43.255 ether 00:16:3e:20:fc:a2 txqueuelen 1000 (Ethernet) RX packets 9489 bytes 2674331 (2.5 MiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 3655 bytes 11370881 (10.8 MiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536 inet 127.0.0.1 netmask 255.0.0.0 loop txqueuelen 0 (Local Loopback) RX packets 67298 bytes 36550074 (34.8 MiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 67298 bytes 36550074 (34.8 MiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface default ovirt1.test.lab 0.0.0.0 UG 100 0 0 eth0 10.20.40.0 0.0.0.0 255.255.252.0 U 100 0 0 eth0

3 2

Documentation
by zero four 05 Sep '16

05 Sep '16

As a prospective user of oVirt I have noticed quite a lot of glaring problems with the documentation, is it still being maintained? Since outdated or incomplete documentation is often worse than nothing, a possible solution would be to just link to the official Red Hat Virtualization documentation. Here are some examples I found after looking for less than 5 minutes: 1. http://www.ovirt.org/documentation/ The top of this web page has two videos from 2012. The left one "oVirt Open Virtualization Basics -- Single Machine Install" is a guide for the all in one install. This is misleading as it no longer possible to perform an all in one install since 3.6, and in general it would appear the oVirt project does not support deploying oVirt to a single machine. The right video is a guide on creating VMs using the GUI from 2012 which has since changed. Overall both videos should be removed from the Documentation page as they only confuse and mislead new users. I, and I am sure many other users would greatly appreciate more current video guides. 2. https://www.ovirt.org/documentation/how-to/hosted-engine/#fresh-install Under the notes for this there is the following passage: “Although hosted-engine and engine-setup use different wording for the admin password ("'admin@internal' user password" vs "Engine admin password"), they are asking for the same thing. If you enter different passwords, the hosted-engine setup will fail.” Why is the wording different? This appears to be entirely unnecessary, and also confusing as to why it is asking for the password a second time at all. 3. https://www.ovirt.org/documentation/how-to/hosted-engine/#fresh-install After finishing the hosted engine deployment script the guide states: “After completing the OS installation on the VM, return to the host and continue. The installer on the host will sync with the VM and ask for the engine to be installed on the new VM:” It is unclear how you are expected to access the VM, is the Web UI up at this point? Do you need to use virsh to connect to the VM? The guide should be explicit. 4. https://www.ovirt.org/documentation/quickstart/quickstart-guide/#prerequisi… I. The documentation discusses Fedora 19, Fedora is currently on version 24 and 19 is EOL. II. Under “Storage and Networking” there is no mention that oVirt requires at least 3 GlusterFS bricks to achieve quorum. III. Under “Virtual Machines” there is no mention of Windows 10, Fedora past version 20, or RHEL/CentOS 7.X.

4 4

where to get information about wdmd, sanlock logic
by Gianluca Cecchi 04 Sep '16

04 Sep '16

Hello, is wdmd similar to the old watchdog daemon that was used to kill node (eg in old Oracle 9i RAC environments on Linux)? Is it stoppable at all without having host reboot itself? I see many other daemons on the hypervisor but not so clear the correlation between them and inter-dependency Eg momd, vdsmd, supervdsmd or ovirt-ha-agent, ovirt-habroker Suppose I have an environment with only one host up (eg single host environment but not only; think about a site where due to planned maintenance I have to stop all one at a time), do I have a way to put the host in single user mode without having it automatically reboot itself? Any docs? Thanks, Gianluca

2 1

Hung task finalizing live migration
by Maton, Brett 04 Sep '16

04 Sep '16

How do I fix / kill a hung vdsm task? It seems to have completed the task but is stuck finalising. Removing Snapshot Auto-generated for Live Storage Migration Validating Executing (hour glass) Finalizing Task has been 'stuck' finalising for over 13 hours

2 1